Answer:
6.25
Step-by-step explanation:
(x-a)^2=x^2-2ax+a^2
2a=5
a=2.5
2.5 ^ 2 = 6.25
Answer:
x = 50°
y = 130°
z = 130°
Step-by-step explanation:
the central angle is equal to it's arc in degrees.
y = 180° - 50° = 130°
4. Volume is 5 cubed = 125cm^3
Surface area is 25x6=150cm^2
5. 50-((3x4.50)+(2x3.75)+(4x4.20))
7. 2n(4m+3)
6. 6a - 15
8. 3.14
9. 247.46
10. 1349.00